[Lynn]

All,

My Armando's pan which is virtually identical to the Aviad will hold 8 qts below the windage tray. I might put that much in if I were running an endurance which did not allow the addition of oil (see windage discussion below), but it would show 1 qt over full on my dipstick.

Speaking of windage, this is another of the advantages of a dry sump system in addition to those already mentioned. It virtually eliminates windage issues associated with a wet sump system, even if those systems have wipers and windage trays. This translates into more horsepower. Believe it or not, the rods and crank running into flying oil disipate a measurable amount of energy.
Most racers who employ a dry sump system will take great care in dealing with drain back of oil for this reason also, as well as supply and heat issues. The top end will often have its own scavange points and the oil from the crank/rod oiling will be caught by scrapers. The oil from the lifters and cam(s) have been dealt with in numerous clever ways. Lastly, not only will the inner surfaces of the block be deburred, but often they will be coated with a material (the name of which escapes me at the moment, but is generally redish in color) that enhances the drain back of oil down to the scavanger ports.

If you are going to go dry sump, you might as well take it all the way. It will take some planning and research, but it won't add that much to the cost.

Regards,
Lynn